Lamp.



W. O. BAITS.-

LAMP.

4 APPLIOATIOK rum) MAY 31,1913.

Patented Jan. 13, 1914 2 SHEETS SKEET 1. #1 I J 70 I 1 ll I l 0 g 2 8'Z, n 18 26 20 if I m Ewucntoa.

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LAMP.

APPLICATION FILED MAY 31,1913

Patefited Jan. 13, 1914;

2 SHEETS-811331 2.

UNrrED sTAr as PATENT OFFICE.

WILLIAM o. nan rs, or GRANITE, cono'na'no.

To all whom it may concern: I I

Be it known that I, VVILLmM O. BATIS, a citizen of the United States,residing at Granite, in the county-ofOhaftee and State of Colorado,haveinvented certain new and useful Improvements in Lamps, of which thefollowing is a speciii cation, reference being had therein to theaccompanying draw,-

ings. I

The lamp provided by this invention particularly is adapted for use inassociation with railway-signals, but it also may be used for otherpurposes.

It is an object of the invention to provide a lamp that will not blowout even in the highest windsfthat will keep the illuminatingfueltherein at a sufliciently high tem-- perature t o flprevent freezing orsemisolidification in ery cold weather, and that will illuminat astation-platform without confusing the signal-light therefrom.

When read in connection with the description herein, the details ofconstruction and arrangement of parts contemplated by the invention willbe apparent from the accompanying drawing, forming part hereof,

wherein there are disclosed for purposes of illustration embodiments ofthe invention adapted for use with semaphore railwaysignals t While theembodiments disclosed now are considered preferable ones, it is to beunderstood that it is not the intention to be limited necessarily to theexact delineations herein in interpretation of claims hereinafter, as itis obvious that alterations may be made ran'gement for being shown;'Fig. 6 is a view in elevation of a modification; and Fig. 7 is asectional view thereof. 7

Referring more particularly to the draws ciiication of Letters Yatent.Application filed may 31, 1913. Serial No. 771,053.

1, looking up; Fig. 5 is a sectional view- PatehtedJan. 13,1914.

ings, 8 designates a frame comprising substantially parallel normallyvertical rods9 removably secured at their upper ends by nuts 10 to across-piece 11, and havin their lower ends deflected laterally and armedwith eyes 12.

Carried on the frame is a lamp'device that includes anair-tightlamp-chamber casing 13. Positioned in the casing at oppositeplaces in its sides are light-tubes 14, which have screwed thereintolens or. target carrying members. 15. 'A lamp 16, including afuel-reservoir 17 and aburner 18 supplied with fuel from the reservoir,(Figs. 1 and 2), is positioned in the casing in such manner that theburner will show light through the light-tubes, and it is removable andreplaceable through an opening in the bottom of the casing. l

A fine 19 extends upwardly from the central portion of the top of thecasing 13. Airconduits '20 lead through the top of the casing to placesin the lower part of the interior thereof in proximity to thefuel-reservoir for the purpose of supplying to the burner the airnecessary for combustion. The upper ends of the flue and air-conduitsare disposed in a straight line. 1

In order to prevent the lamp-flame from being subjected to air-blastsfrom outside the casingsuiiiciently strong to blow it out and to supplyair only from a protected heated source to the lamp-chamber in thevicinity of the fuel-reservoir'to keep the-fuel therein above thefreezing point, there is positioned above'the lamp-chamber a hollowair-tight casing 21, preferably cylindrical, and having its ends 22removable to afford access to the'interior for cleaning. The casing 21is dividedinto an upper or air-heating compartment 23 and a lower orflue-compartment 24 by a substantially horizontaldiametrically-positioned partition 25. Leading upwardly into the lowercompartment is a central flue 19 arranged to slip over or into the 19and to constitute an extension thereof. On each side of flue 19" andnear an end of the casing 21 is an air-conduit 20 leading from the uppercompartment downwardly through the lower compartment to the exterior ofthe casing, where it is'arranged to slip into or over one ofair-conduits20 and to be held thereto by set-screws' 26, the conduits 2O thusconstituting extensions of conduit's 20. The casing 21 is supported on Acasing 13 by this engagement of flue 19 and conduits 20 with theextensions 19 and 20,

and the flue and conduitsform continuous passages between the casing 21and the lampchamber. Vents 27 open from the lower or flue compartment tothe atmosphere, and airconduits 28 lead from the atmosphere throughthelower compartment to the upper or air-heating compartment.

When the lamp is burning, the products of combustion andheated air riseto the lower compartment through the flue 19-19 and have their exitthrough vents 2'7, and

hot fluids in the lower compartment heat the air in the uppercompartment and in the air-conduits 282' The draft created by theburning lamp operates to draw heated air into the lamp-chamber throughconduits 2O20 fromthe upper compartment; and the heated air isdischarged into th'atchamher at the lowerendsot the conduits in thevicinity of the lamp-reservoir, whereby the reservoir is warmed. 7 Airis supplied to the upper compartment through the tubes 28 whichextend-through the lower compart-' ment and inwhichjit receives itsinitial warming.

If desired .for the purpose of affording illumination to astation-platform or other place below the'lamp, the arrangement may besuchas is illustrated by Figs. 3 and 5 or as is illustrated by Figs. 6and 7.

As shown by Figs. 3 and 5, a lamp 16 has a reservoir 17 through which isan enlarged central vertical opening 29 to the cen- .tached to the lowershade and reflector 31 is attached to the reservoir. i

As shown by Figs. 6 and 7, the lamp clevice includes a lamp-chambercasing 13 which is of substantially double-truncated: cone shape orbulged intermediate its top and bottom. The lower portion 32 of thecasing is made of glass or'other translucent material, in the vertex ofwhich the reservoir 17 of a lamp 16 is held by rods or other suitablesupports 33, the arrangement being such that light from a burner 18* isshown downwardly as well as laterally through the targets. In order toshade the downward light at the sides, an outwardly and downwardlyflaring shadeand reflector 51 is atportion of the lampchamber casing. e

The lamp device is placed and held on theframe 8 by having a frame-rod 9oneach side passed upwardly through eyes 3 1 on the lamp-chamber casing13 and on upper casing 21 and thense'cured to cross piecev 11 by nuts10, the weight of the lamp device being sustained by the eyes on thelamp-chamber casing resting on the laterally-deflected eyes 12 and thelamp bein held in 11' ri ht posii e P c r tion by the eyes on the casing21. Having thus described my invention, what I claim as new, and desire.to secure by Letters Patent, is-

A lamp device having a lamp-chamber, a casing having a partitiondividing its in terior into a flue-compartment and a heat--ing-compartnient, a flue leading from said' lamp chamber to said fluecompartment, there being a vent to the atmosphere from saidflue-compartment, a conduit leading from the atmosphere through saidflue-compartment to said heating-co'mpartment, and ,a conduit leadingfrom said heating-compartment to said lamp-chamber.

In testimony, whereof, I attix my signature in presence of twowitnesses.

WILLIAM O. BATTS. fWitnesses:

J. ML BONNEY, GEORGE F. JOHNSON.

Copies of this patent may be obtained 1'02- five cents each, byaddressing the Commissioner of Patents, Washington, D. C. v

